[Bug 1784347] [NEW] ISST-LTE: KVM:UBUNTU1804: BostonLC: fdisk -l shows the conflicting partitions name for the mpath

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== Comment: #0 - Chanh H. Nguyen <chnguyen at us.ibm.com> - 2018-01-09 11:14:07 ==
We have the Ubuntu1804 installed on our BostonLC system. Create a SAN via the Emulex adapter to have the mpath disk. 
Running the fdisk -l and ls -l showing the conflict name for the mpath. 

:~# uname -a
Linux boslcp4 4.13.0-17-generic #20-Ubuntu SMP Mon Nov 6 10:03:08 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
root at boslcp4:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

:~# fdisk -l /dev/mapper/mpatha
Disk /dev/mapper/mpatha: 600 GiB, 644245094400 bytes, 1258291200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 32768 bytes / 32768 bytes
Disklabel type: dos
Disk identifier: 0xa5be904b

Device                   Boot     Start        End   Sectors  Size Id Type
/dev/mapper/mpatha-part1           2048  419432447 419430400  200G 83 Linux
/dev/mapper/mpatha-part2      419432448  838862847 419430400  200G 83 Linux
/dev/mapper/mpatha-part3      838862848 1258291199 419428352  200G 83 Linux

:~# ls -l /dev/mapper/mpatha*
lrwxrwxrwx 1 root root 7 Jan  9 04:04 /dev/mapper/mpatha -> ../dm-0
lrwxrwxrwx 1 root root 7 Jan  9 04:03 /dev/mapper/mpatha1 -> ../dm-1
lrwxrwxrwx 1 root root 7 Jan  9 04:03 /dev/mapper/mpatha2 -> ../dm-2
lrwxrwxrwx 1 root root 7 Jan  9 04:03 /dev/mapper/mpatha3 -> ../dm-3

== Comment: #2 - Chanh H. Nguyen <chnguyen at us.ibm.com> - 2018-01-09 11:35:04 ==
I just modify the partitions and it is still showing the conflicting name on partitions.

:~# ls -l /dev/mapper/mpatha*
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha -> ../dm-0
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha1 -> ../dm-1
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha2 -> ../dm-2
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha3 -> ../dm-3
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha4 -> ../dm-4
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha5 -> ../dm-5
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha6 -> ../dm-6
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha7 -> ../dm-7
lrwxrwxrwx 1 root root 7 Jan  9 04:33 /dev/mapper/mpatha8 -> ../dm-8

:~# fdisk -l /dev/mapper/mpatha
Disk /dev/mapper/mpatha: 600 GiB, 644245094400 bytes, 1258291200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 32768 bytes / 32768 bytes
Disklabel type: dos
Disk identifier: 0xa5be904b

Device                   Boot      Start        End   Sectors  Size Id Type
/dev/mapper/mpatha-part1            2048  419432447 419430400  200G 83 Linux
/dev/mapper/mpatha-part2       419432448  838862847 419430400  200G 83 Linux
/dev/mapper/mpatha-part3       838862848  964691967 125829120   60G 83 Linux
/dev/mapper/mpatha-part4       964691968 1258291199 293599232  140G  5 Extended
/dev/mapper/mpatha-part5       964694016 1006637055  41943040   20G 83 Linux
/dev/mapper/mpatha-part6      1006639104 1048582143  41943040   20G 83 Linux
/dev/mapper/mpatha-part7      1048584192 1090527231  41943040   20G 83 Linux
/dev/mapper/mpatha-part8      1090529280 1132472319  41943040   20G 83 Linux

== Comment: #5 - Kyle Mahlkuch <Kyle.Mahlkuch at ibm.com> - 2018-06-26 13:50:12 ==
I have created and submitted a patch that should help with this bug. I will update when/if the patch is accepted.

== Comment: #9 - Kyle Mahlkuch <Kyle.Mahlkuch at ibm.com> - 2018-07-27 09:10:44 ==
Here is the patch: 
https://github.com/karelzak/util-linux/commit/73775189767195f1d9f5b6b6f6a54e51f61c4356

** Affects: util-linux (Ubuntu)
     Importance: Undecided
     Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
         Status: New


** Tags: architecture-ppc64le bugnameltc-163340 severity-high targetmilestone-inin1804
-- 
ISST-LTE: KVM:UBUNTU1804: BostonLC: fdisk -l shows the conflicting partitions name for the mpath
https://bugs.launchpad.net/bugs/1784347
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